DERIVATIVE FINANCIAL INSTRUMENTS AND PURCHASE COMMITMENTS - Reconciliation of the Changes in the Warrant Liability (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 04, 2021	Apr. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Reconciliation Of Changes In Warrant Liability [Roll Forward]
Fair value of warrant liabilities, beginning balance	$ 104,400	$ 137,612		$ 137,612
Loss on remeasurement of warrant liability	(19,368)	21,501	$ 0	2,133	$ 0
Reclassification of warrant liability to equity for exercised or cancelled warrants		(54,713)
Fair value of warrant liabilities, ending balance	$ 85,032	$ 104,400		$ 85,032